以位为单位设置掩码中的所有位（即

/*******************************************************************************

 *   Copyright 2014 Analog Devices, Inc.

 *

 *   Licensed under the Apache License, Version 2.0 (the "License");

 *   you may not use this file except in compliance with the License.

 *   You may obtain a copy of the License at

 *

 *       http://www.apache.org/licenses/LICENSE-2.0

 *

 *   Unless required by applicable law or agreed to in writing, software

 *   distributed under the License is distributed on an "AS IS" BASIS,

 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 *   See the License for the specific language governing permissions and

 *   limitations under the License.

 ********************************************************************************/
 /*
 N o w J a v a . c o m - 时  代  Java
 */

//package com.nowjava;


public class Main {

    public static void main(String[] argv) throws Exception {

        int bits = 2;

        int mask = 2;

        System.out.println(setMask(bits, mask));

    }


    /**

     * Sets all bits in {@code mask} in {@code bits} (i.e. "bitwise or" of two values).

     */

    public static int setMask(int bits, int mask) {

        return bits | mask;

    }